After grabbing a bite to eat, the famous family enjoyed a park playdate at Coldwater Canyon Park, where they ran into Tobey Maguire’s wife, jewelry designer Jennifer Meyer.

At the recent two-year anniversary bash for The Honest Company, Jessica recalled a scary mommy moment and how that experience inspired her eco-friendly business.

“My kid’s diaper exploded. All of a sudden, these beads were in her mouth,” the actress, 32, told Us. “And I was calling my mom, and I was like, ‘What happened? What do I do? What is this made out of?’ I called my pediatrician. I called 911. I completely freaked out.”

As it turned out, contacting the diaper company did little to ease her mind.

“Basically, the company said, ‘You have to have your doctor write us a letter and tell us what your child is allergic to. And we’ll let you know if we have that ingredient in our diaper,’ ” Jessica shared. “And I’m like, ‘I’m not going to test if there are certain chemicals.’ Like, I’m not going to pour petroleum down my kid’s throat and say, ‘Oh, are you going to have an adverse reaction to this?’ No way.”

After this incident, and another involving an allergic reaction to baby laundry detergent, The Honest Company was born.